Open Access Open Access  Restricted Access Subscription or Fee Access

Studies in Asian Nervilia (Nervilieae, Epidendroideae, Orchidaceae) VI: N. mekongensis, a new species from Thailand, Cambodia, Laos and Vietnam

STEPHAN W. GALE, ANDRÉ SCHUITEMAN, SANTI WATTHANA, TOMOKI SANDO, KEOOUDONE SOUVANNAKHOUMMANE, LEONID AVERYANOV, SOMRAN SUDDEE

Abstract


A new species of the terrestrial orchid genus Nervilia is described and illustrated from material collected at several localities in the Greater Mekong region of Southeast Asia. The multi-flowered inflorescence bearing relatively large flowers with a pubescent lip, and the many-veined, cordate-reniform leaf blade that is held well above ground level, place N. mekongensis in section Nervilia. Despite being superficially similar to N. aragoana, a widespread species of tropical Asia and Australasia, it is most closely affiliated to N. fordii, a species known from southern China and Thailand. It is distinguished by its stout inflorescence and lip that is broadest midway along the hypochile and which has acute, forward-projecting side-lobes and a short, ovate mid-lobe. A conservation assessment plus taxonomic notes are provided.


Keywords


Nervilieae, Epidendroideae, Orchidaceae, Monocots, Asia

Full Text:

PDF (3MB)


DOI: http://dx.doi.org/10.11646/phytotaxa.247.4.4

Refbacks

  • There are currently no refbacks.


ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand